Question

(- 2k ^ 3 - 7k ^ 2 + 5k) + (6k ^ 2 + 3k) =

Answer 1

`- {2k}^(3) - {k}^(2) + 8k`

Explanation:

1) Remove parentheses.

`- {2k}^(3) - {7k}^(2) + 5k + {6k}^(2) + 3k`

2) Collect like terms.

`- {2k}^(3) + ( - 7k^(2) + {6k}^(2) ) + (5k + 3k)`

3)Simplify.

`- {2k}^(3) - {k}^(2) + 8k`

Therefor, the answer is -2k³ - k² + 8k.